<template>
  <div>
    <!--面包屑导航区-->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图区域-->
    <el-card class="box-card">
      <div>
        <!--搜索与添加区域-->
        <el-row :gutter="20">
          <el-col :span="7">
            <el-input v-model="queryInfo.query"
                      clearable placeholder="请输入内容" @clear="getUserList">
              <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
<!--            控制添加用户对话框的显示与隐藏-->
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
          </el-col>
        </el-row>
      </div>
      <!--用户列表区域-->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!--{{scope.row}} 作用域插槽-->
            <el-switch
              v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <!--         eslint-disable-next-line-->
          <template slot-scope="scope">
            <!--修改按钮-->
            <el-button icon="el-icon-edit" size="mini" type="primary" @click="showEditDialog(scope.row.id)"></el-button>
            <!--删除按钮-->
            <el-button icon="el-icon-delete" size="mini" type="danger" @click="removeUserById(scope.row.id)"></el-button>
            <!--分配角色按钮-->
            <el-tooltip :enterable="false" content="分配角色" effect="dark" placement="top">
              <el-button icon="el-icon-setting" size="mini" type="warning" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--分页区域-->
      <el-pagination
        :current-page="queryInfo.pagenum"
        :page-size="queryInfo.pagesize"
        :page-sizes="[1, 2, 8, 10]"
        :total="total"
        layout="total, sizes, prev, pager, next, jumper"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange">
      </el-pagination>
    </el-card>

    <!--添加用户的对话框-->
    <el-dialog
      :before-close="handleClose"
      :visible.sync="addDialogVisible"
      @close="addDialogClosed"
      title="添加用户"
      width="30%">
    <!--内容主体区域-->
      <el-form ref="addFormRef" :rules="addFormRules" :model="addForm" label-width="80px" >
        <!--添加用户名-->
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <!--添加密码-->
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <!--添加用户名-->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <!--添加用户名-->
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--底部主体区域-->
      <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser" >确 定</el-button>
  </span>
    </el-dialog>
    <!--修改用户的对话框-->
    <el-dialog
      title="修改"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
      >
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" class="demo-ruleForm">
        <el-form-item label="用户名" >
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="60%"
      @close="setRoleDialogClosed"
      >
      <div>
        <p>当前的角色: {{userInfo.username}}</p>
        <p>当前的角色: {{userInfo.role_name}}</p>
        <p>分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'MyUsers',
  data() {
    // 自定义规则
    // 验证邮箱
    const checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱!'))
    }
    // 验证手机号
    const checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取查询参数
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      addDialogVisible: false,
      editDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 查询到的用户信息对象
      editForm: {},
      // 分配角色对话框
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      roleList: [],
      // 已选中的id角色值
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关变化
    async userStateChanged(userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      // console.log(res)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功!')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      // console.log()
      this.$refs.addFormRef.resetFields()
    },
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        // console.log(valid)
        // eslint-disable-next-line no-useless-return
        if (!valid) return
        //  可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 200) {
          this.$message.error('添加用户失败!')
        }
        this.$message.success('添加用户成功!')
        this.addDialogVisible = false
        // 重新获取用户数据
        this.getUserList()
      })
    },
    handleClose() {},
    // 展示编辑的对话框
    async showEditDialog(id) {
      // console.log(id)
      const { data: res } = await this.$http.get('users/' + id)
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败!')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        //  发起修改用户信息的数据请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败!')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示用户修改信息成功
        this.$message.success('更新用户信息成功!')
      })
    },
    // 删除操作
    async removeUserById(id) {
      // console.log(id)
      // 弹框提示用户是否删除数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败!')
      }
      this.$message.success('删除成功!')
      this.getUserList()
    },
    async setRole(userInfo) {
      this.userInfo = userInfo
      // 在展示对话框之前，获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败!')
      }
      this.roleList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色!')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectedRoleId
      })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败!')
      }
      this.$message.success('更新角色成功!')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>

</style>
